Therefore - Crossword Clue, Answer and Explanation

I've seen this clue in The Star Tribune, The Telegraph, The Wall Street Journal, the Evening Standard, the King Feature Syndicate, The Guardian, the Sydney Morning Herald, the Penny Press, the USA Today, The Independent, The Mirror, the Newsday, The New York Times, The Times, the LA Times and the Universal.

'therefore' is the definition. (synonyms) This is all the clue.

(Other definitions for thus that I've seen before include "In this way" , "as indicated" , "an original Christmas gift" , "It follows" , "Therefore, hence" .)

I've seen this clue in The Telegraph, The Wall Street Journal, The Washington Post, the Universal, The Guardian, the Sydney Morning Herald, The Independent, The Mirror, The Times, The Irish Times, the Evening Standard, The Star Tribune, the King Feature Syndicate, the Newsday.com, the Penny Press, the USA Today, The New York Times, The Sun, the LA Times and the Newsday.

'therefore' is the definition. (I've seen this before) This is all the clue.

(Other definitions for ergo that I've seen before include "Thus" , "Consequently" , "'Cogito, ---- sum'" , "so philosopher wrote in Latin" , "It follows" .)

I've seen this clue in The Telegraph, The Wall Street Journal, The Washington Post, the Universal, The Guardian, the Sydney Morning Herald, The Independent, The Mirror, The Times, The Irish Times, the Evening Standard, The Star Tribune, the King Feature Syndicate, the Newsday.com, the Penny Press, the USA Today, The New York Times, The Sun, the LA Times and the Newsday.

'therefore' is the definition. ('so' can mean 'consequently' or 'therefore') This is all the clue.

I've seen this clue in the King Feature Syndicate.

Therefore (5)